CN205689159U - A kind of packer - Google Patents
A kind of packer Download PDFInfo
- Publication number
- CN205689159U CN205689159U CN201620439303.8U CN201620439303U CN205689159U CN 205689159 U CN205689159 U CN 205689159U CN 201620439303 U CN201620439303 U CN 201620439303U CN 205689159 U CN205689159 U CN 205689159U
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- CN
- China
- Prior art keywords
- pipe
- box
- coupling
- central
- packer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
This utility model provides a kind of packer, has the box cupling of detent, latch-up structure and solvable ball including casing coupling or tubing coupling (hereinafter referred to as " oil casing collar ") inwall；Structure includes oil casing collar and central canal, and central canal is located in oil casing collar；Oil casing collar bottom is provided with and the lock pawl of the detent clamping on oil casing collar；The lower end of central canal is provided with recovery box cupling；Central upper portion pipe upper end is provided with the arc groove agreed with mutually with solvable ball.Oil casing collar of the present utility model is to redesign, and (locating slot, latch-up structure realize positioning in the detent of oil casing collar, lock, fix to process groove；Latch-up structure bears upper and lower in detent or bears above and below pressure differential simultaneously, stops liquid or gas to circulate up and down, it is ensured that surface production, operation, personal security.This utility model can complete repeatedly to insulate and unseal action in oil casing collar, simple to operate, and underground work efficiency is high.
Description
Technical field
This utility model relates to insulating bottom oil, the capping tools technical field of gas and water layer in the mine such as oil well, gas well,
Especially relate to a kind of packer.
Background technology
Packer belongs to petroleum drilling, the solid and common equipment in Well Completion Engineering of Oil Reservoirs field, be a kind of safe and reliable, with low cost,
Down-hole plugging instrument multiple functional, applied widely.It is used for insulating between various sizes tubing string and well and tubing string it
Between annular space, in case the flowing up and down of the fluid in stop ring sky, so that it is guaranteed that seperated layer water injection, acidifying, pressure break and gaslift completion are executed
Work industry can be smoothed out.
At present, the packer in known technology has following defects that one in actual use, packer under enter process
In be hampered, shear pin is surprisingly sheared, and easily causes the risk that packer insulates in advance；Its two, conventional packer packing after, its
The seal pressure differential grade of packing element is low, and slips anchoring suspended load is little；Its three, enter to cut fishing tool and divide under needing when packer reclaims
Duan Huishou, enters position error big under execute-in-place, using multistage subsection to reclaim, not only operation is loaded down with trivial details, waste time and energy, and affects operation
Efficiency, and operating cost is high.
Chinese patent notification number CN 2876319 Y discloses a kind of anti-midway packing high-pressure drillable bridge plug, including center
Pipe, bidirectionally anchoring device, black box and packing element outburst prevention device.Bidirectionally anchoring device includes the card being arranged on central canal bottom
Watt, upper cone and lower cone, wherein upper cone is centrally located on pipe by cone shear pin, and lower cone is fixedly mounted on central canal
On.Black box includes being sleeved on the limit packing element in the middle part of central canal and middle packing element.Packing element outburst prevention device includes male expansion ring, female expansion ring
And retaining ring, the central canal of top and bottom being positioned at black box is respectively mounted this male expansion ring, female expansion ring and retaining ring.This is prevented
Midway packing high-pressure drillable bridge plug has that profile is short and pithy, easy construction reliable, bridging plug bears that upper and lower pressure reduction is big (the highest can
Reach 70MPa), use that one-time success rate is high, efficiency of construction high, easily bore the features such as grinding envelope, it is adaptable to oil in oil field prospecting, exploitation
The bottom water plugging of gas well, select layer acid fracturing with on return in the pipe string technology measures such as formation testing.
Chinese patent CN 200992982 Y discloses a kind of one-trip string hydraulic pressure packing squeezing bridging plug, total including hydraulic cylinder
One-tenth, steel ball and ball seat.Seal the upper end intubated and be connected to the lower end of hydraulic cylinder assembly, be installed with in sealing the lower end intubated
The ball seat that can be blocked by steel ball, sliding sleeve upper opening thus form point claw with spring function, this point of claw can be enclosed within
On sealing intubates, sealing intubates the boss of lower end can make sliding sleeve move up from the interior point claw that blocks, and can divide from outer promotion again
Claw makes sliding sleeve move down, on central canal is enclosed within sliding sleeve from the bottom up and sealing intubates.This structure has rational in infrastructure and tight
Gather, and there is the advantages such as sealing pressure reduction reliable, resistance to is high, plugging effect is preferable, drillability is good, with low cost.
Both the above packer can be used to insulate bottom oil, gas and water layer, but relies on central canal after packing with main
Retaining mechanism such as unseal shear pin, various internal locking assembly (as conical ring, lock ring, snap close or lock refer to buckle) etc. realize locking, with
Packer is remained fixed at packing position.But in the corrosivity shaft bottom of High Temperature High Pressure, the locking function of aforementioned locking mechanism
, easily during transferring packer, there is midway packing accident in the position that packing should not occur, the most easily in poor reliability
Packing position cannot be firmly held in after target location insulates and occur to insulate failure accidents.And aforementioned three kinds of packings
Device, every lower one-trip string can only realize once insulating and unsealing action, such as packing and deblocking action for carrying out next well section, must
Packer must be mentioned well face, change packer damaged packing shear pin and deblocking shear pin during performing packing and deblocking,
Just can realize insulating next time and unsealing by packer G.I.H the most again, it is impossible to complete repeatedly in one-trip string
Packing and deblocking action, operation complexity, underground work efficiency is low, cost is high.
Utility model content
The purpose of this utility model is to provide a kind of packer, so that solve cannot be at a set present in prior art
Pipe or oil pipe complete repeatedly to insulate and unseal action, operation complexity, the inefficient problem of underground work.
The packer that this utility model provides, including:
Inwall is provided with casing coupling or tubing coupling, latch-up structure and the solvable ball of detent:
Described latch-up structure includes casing coupling or tubing coupling locking pipe box and central canal, and central canal is located in described set
In pipe box cupling or tubing coupling locking pipe box, and the top and bottom of central canal all protrude from described casing coupling or tubing coupling
Locking pipe box；
Casing coupling or tubing coupling locking pipe box bottom are provided with and the detent on casing coupling or tubing coupling
The lock pawl of clamping；
The lower end of described central canal is provided with recovery box cupling, and the external diameter of described recovery box cupling is more than described casing coupling or oil
The internal diameter of pipe box cupling locking pipe box；
Described central canal includes central upper portion pipe and lower central pipe, and the diameter of described central upper portion pipe is more than lower central
The diameter of pipe, is provided with transition piece between described central upper portion pipe and lower central pipe；
Described central upper portion pipe upper end is provided with the arc groove agreed with mutually with solvable ball.
Further, described lock pawl includes multiple locking what pipe box circumference was uniformly arranged along casing coupling or tubing coupling
Elastic projection, multiple elastic projections composition tubular structure；
The internal diameter of described lock pawl is less than casing coupling or the internal diameter of tubing coupling locking pipe box, the external diameter of described lock pawl
The external diameter of pipe box is locked more than casing coupling or tubing coupling.
Further, described casing coupling or tubing coupling locking pipe box include top locking pipe box and bottom locking tube
Set；
Top locking pipe box and bottom locking pipe box are by screwed connection, and bottom locking tube puts and is provided with limited step,
Being provided with black box on limited step, the lower end in contact of pipe box is locked with top in the upper end of black box.
Further, the top of described casing coupling or tubing coupling locking pipe box is provided with and enters instrument under connecting
Screw thread so that latch-up structure of the present utility model can be conveniently and efficiently in lower going-into-well setting of casing or oil pipe.
Further, described central upper portion inside pipe wall is provided with steel wire accumulator tank, steel wire accumulator tank be arranged at
The recovery box cupling of heart pipe lower end with the use of so that latch-up structure of the present utility model can be conveniently and efficiently from down-hole casing or oil
Pipe is recycled to ground or upper casing joint or oil pipe.
Further, described transition piece is cone sleeve pipe, can cooperate with the conical surface on elastic projection surface, extrudes bullet
Property projection so that elastic projection is firmly stuck in the detent of casing coupling or tubing coupling, it is achieved sleeve pipe or the envelope of oil pipe
Every.
Further, described central upper portion pipe, transition piece and lower central pipe are structure as a whole.
Further, the described box cupling that reclaims is the ring-type projection being set on the lower central pipe of central canal.
Further, the described box cupling that reclaims is the ring-type projection arranged with central canal integrative-structure.
Further, described black box is rubber or silica gel.
Compared to prior art, the packer that this utility model provides, have the advantage that
1, cooperating of pipe box, central canal and solvable ball is locked in casing coupling or tubing coupling, and molten ball is by under central canal
Pressure, the lock pawl of the transition piece extruding lock collar of central canal so that lock pawl is stuck in the location of casing coupling or tubing coupling
In groove, sleeve pipe or oil pipe are insulated, there is advantage simple to operate；
2, central canal includes central upper portion pipe and lower central pipe, and the diameter of described central upper portion pipe is more than lower central pipe
Diameter, be provided with transition piece between described central upper portion pipe and lower central pipe.The setting of this kind of structure so that under central canal
During shifting, extruding lock pawl, lock pawl is expanded so that lock pawl is firmly stuck in the detent of casing coupling or tubing coupling,
Realize the packing of sleeve pipe or oil pipe；When moving on central canal, lock pawl shrinks so that lock pawl departs from casing coupling or tubing coupling
Detent, it is achieved sleeve pipe or the deblocking of oil pipe；Therefore, every next sleeve pipe of this utility model or oil pipe can realize repeatedly sealing
Every with deblocking action；
3, central upper portion pipe upper end is provided with the arc groove agreed with mutually with solvable ball, and solvable ball closely pastes with arc groove
Close so that packing effect of the present utility model is more preferable.
4, the lower end of central canal is provided with recovery box cupling, and the diameter reclaiming box cupling connects more than described casing coupling or oil pipe
The diameter of hoop locking pipe box；Make latch-up structure of the present utility model can be recycled to ground from down-hole casing or oil pipe conveniently and efficiently
Face or upper casing joint or oil pipe so that this utility model completes repeatedly insulate and unseal action in a sleeve pipe or oil pipe,
Underground work efficiency is high.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of this utility model latch-up structure；
Fig. 3 is this utility model latch-up structure and the sectional view of solvable ball；
Fig. 4 is this utility model casing coupling or the structural representation of tubing coupling locking pipe box；
Fig. 5 is this utility model casing coupling or the sectional view of tubing coupling locking pipe box；
Fig. 6 is this utility model central canal and the structural representation of solvable ball；
Fig. 7 is this utility model central canal and the sectional view of solvable ball；
Fig. 8 is the structural representation of this utility model casing coupling or tubing coupling.
Reference:
1-casing coupling or oil pipe 2-latch-up structure；The solvable ball of 3-；
Box cupling；
4-sleeve pipe or oil pipe；11-detent；21-casing coupling or oil pipe
Box cupling locking pipe box；
22-central canal；211-lock pawl；212-top locking pipe box；
213-bottom locking pipe box；214-black box；215-screw thread；
221-reclaims box cupling；222-central upper portion pipe；223-lower central pipe；
224-transition piece；225-arc groove；226-steel wire accumulator tank.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
Fig. 1 is structural representation of the present utility model；Fig. 2 is the structural representation of this utility model latch-up structure；Fig. 3 is
This utility model latch-up structure and the sectional view of solvable ball；Fig. 4 is this utility model casing coupling or tubing coupling locking pipe box
Structural representation；Fig. 5 is this utility model casing coupling or the sectional view of tubing coupling locking pipe box；Fig. 6 is that this practicality is new
Type central canal and the structural representation of solvable ball；Fig. 7 is this utility model central canal and the sectional view of solvable ball；Fig. 8 is this reality
With new casing box cupling or the structural representation of tubing coupling.
As shown in figures 1-8, the packer that the present embodiment provides, including:
Inwall is provided with casing coupling or tubing coupling 1, latch-up structure 2 and the solvable ball 3 of detent 11:
Described latch-up structure 2 includes casing coupling or tubing coupling locking pipe box 21 and central canal 22, and central canal 22 wears
Lock in pipe box 21 at described casing coupling or tubing coupling, and the top and bottom of central canal 22 all protrude from described sleeve pipe and connect
Hoop or tubing coupling locking pipe box 21；
Casing coupling or tubing coupling locking pipe box 21 bottom are provided with recessed with the location on casing coupling or tubing coupling 1
The lock pawl 211 of groove 11 clamping；
The lower end of described central canal 22 is provided with recovery box cupling 221, and the external diameter of described recovery box cupling 221 is more than described sleeve pipe
Box cupling or the internal diameter of tubing coupling locking pipe box 21；
Described central canal 22 includes central upper portion pipe 222 and lower central pipe 223, the diameter of described central upper portion pipe 222
More than the diameter of lower central pipe 223, between described central upper portion pipe 222 and lower central pipe 223, it is provided with transition piece 224；
Described central upper portion pipe 222 upper end is provided with the arc groove 225 agreed with solvable ball 3 phase.
Compared to prior art, the packer that this utility model provides, have the advantage that
1, cooperating of pipe box 21, central canal 22 and solvable ball 3, solvable ball are locked by casing coupling or tubing coupling
Central canal is pressed for 22 times by 3, and the transition piece 224 of central canal 22 extrudes the lock pawl 211 of lock collar so that lock pawl 211 is stuck in
In the detent 11 of casing coupling or tubing coupling 1, sleeve pipe or oil pipe 4 are insulated, there is advantage simple to operate；
2, central canal 22 includes central upper portion pipe 222 and lower central pipe 223, and the diameter of described central upper portion pipe 222 is big
It is provided with transition piece 224 between the diameter of lower central pipe 223, described central upper portion pipe 222 and lower central pipe 223.This
Planting the setting of structure so that when central canal 22 moves down, extrude lock pawl 211, lock pawl 211 is expanded so that lock pawl 211 is firmly
It is stuck in the detent 11 of casing coupling or tubing coupling 1, it is achieved sleeve pipe or the packing of oil pipe 4；When moving on central canal 22, lock
Determine pawl 211 to shrink so that lock pawl 211 departs from the detent 11 of casing coupling or tubing coupling 1, it is achieved sleeve pipe or oil pipe 4
Deblocking；Therefore, every next sleeve pipe of this utility model or oil pipe 4 can realize repeatedly insulating and unsealing action；
3, central upper portion pipe 222 upper end is provided with the arc groove 225 agreed with solvable ball 3 phase, and solvable ball 3 is recessed with arc
Groove 225 fits tightly so that packing effect of the present utility model is more preferable.
4, the lower end of central canal 22 is provided with recovery box cupling 221, and reclaims the diameter of box cupling 221 more than described casing coupling
Or the diameter of tubing coupling locking pipe box 21；Make latch-up structure 2 of the present utility model can conveniently and efficiently from down-hole casing or
Oil pipe 4 is recycled to ground or upper casing joint or oil pipe 4 so that this utility model completes repeatedly in a sleeve pipe or oil pipe 4
Packing and deblocking action, underground work efficiency is high.
The packer that this utility model provides, use the casing coupling of special construction or tubing coupling locking pipe box 21 and in
Heart pipe 22, is pressed central canal for 22 times by the gravity of solvable ball 3, and the transition piece 224 of central canal 22 extrudes the locking of lock collar
Pawl 211 so that lock pawl 211 is stuck in the detent 11 of casing coupling or tubing coupling 1, seals sleeve pipe or oil pipe 4
Every.Every next sleeve pipe of this utility model or oil pipe 4 can realize repeatedly insulating and unsealing action, and simple to operate, underground work is imitated
Rate is high, low cost.
Solvable ball 3 is parts conventional in the mine such as oil well, gas well, and for prior art, this utility model repeats no more.
Described lock pawl 211 includes multiple elasticity being uniformly arranged along casing coupling or tubing coupling locking pipe box 21 circumference
Projection, multiple elastic projections composition tubular structure；
The internal diameter of described lock pawl 211 is less than casing coupling or the internal diameter of tubing coupling locking pipe box 21, described lock pawl
The external diameter of 211 is more than casing coupling or the external diameter of tubing coupling locking pipe box 21.
In the present embodiment, the middle part external diameter of elastic projection is more than the top external diameter of elastic projection, outside the middle part of elastic projection
Footpath, more than the lower outer diameter of elastic projection, between elastic projection top and middle part, is all provided with between middle part and the bottom of elastic projection
It is equipped with and is provided with the domatic of inclination.
In the present embodiment, lock pawl 211 is locked pipe box 21 with casing coupling or tubing coupling and is structure as a whole, detachably connects
Access node structure or fixed connection structure all can realize the technical solution of the utility model, belong to the guarantor of technical solutions of the utility model
Protect content.
As Figure 1-5, described casing coupling or tubing coupling locking pipe box 21 include top locking pipe box 212 and bottom
Locking pipe box 213；
Top locking pipe box 212 and bottom locking pipe box 213, by screwed connection, locking pipe box 213 in bottom are provided with
Limited step, limited step is provided with black box 214, and the lower end of pipe box 212 is locked with top in the upper end of black box 214
Contact.
In the present embodiment, described black box 214 is rubber or silica gel.The setting of black box 214 so that in closure
The device closure better tightness to sleeve pipe or oil pipe 4.Certainly, the sealing that this utility model is not limited to rubber or silica gel material is made
Assembly 214, as long as elastic deformation can be produced, strengthens the sealing property between two parts, all can be as of the present utility model close
Sealing assembly 214, to realize the technical solution of the utility model.
The top of described casing coupling or tubing coupling locking pipe box 21 is provided with the screw thread entering instrument under connecting
215 so that latch-up structure 2 of the present utility model can be conveniently and efficiently in lower going-into-well setting of casing or oil pipe 4.
Such as Fig. 1, shown in 3 and 7, described central upper portion pipe 222 inwall being provided with steel wire accumulator tank 226, steel wire reclaims
Groove 226 be arranged at the recovery box cupling 221 of central canal 22 lower end with the use of so that latch-up structure 2 energy side of the present utility model
It is recycled to ground or upper casing joint or oil pipe 4 the most quickly from down-hole casing or oil pipe 4.
Described transition piece 224 is cone sleeve pipe, can cooperate with the conical surface on elastic projection surface, and extruding is elastic convex
Block so that elastic projection is firmly stuck in the detent 11 of casing coupling or tubing coupling 1, it is achieved sleeve pipe or the envelope of oil pipe 4
Every.
Described central upper portion pipe 222, transition piece 224 and lower central pipe 223 are structure as a whole, Detachable connection structure
Or fixed connection structure all can realize the technical solution of the utility model, belong in the protection of technical solutions of the utility model
Hold.
The described box cupling 221 that reclaims is the ring-type projection being set on the lower central pipe 223 of central canal 22.
The described box cupling 221 that reclaims is the ring-type projection arranged with central canal 22 integrative-structure, it is also possible to be detachably to connect
Connect or be fixedly connected on the ring-type projection on central canal 22.
Casing coupling in this utility model or tubing coupling 1 through redesigning, processing, casing coupling or oil pipe
Being provided with ring-type detent 11 on box cupling 1 inwall, latch-up structure 2 is in detent 11 inner position, and then locking；Latch-up structure
2 pressure that can bear latch-up structure 2 top in detent 11, the pressure of latch-up structure 2 bottom or simultaneously bear locking
The pressure differential of structure 2 upper and lower, plays packing sleeve pipe or the internal upper and lower pressure differential of oil pipe 4, stops on liquid or gas
Lower circulation, thus ensure the safety of surface production personnel or operating personnel.
Operation principle of the present utility model is as follows:
By the sleeve pipe connected by casing coupling or tubing coupling 1 or oil pipe 4 G.I.H, use cable, drilling rod or oil
Latch-up structure 2 G.I.H is needed, at casing coupling or the tubing coupling 1 of closure, to take out cable, drilling rod or oil pipe by pipe.
Need closure time, put into solvable ball 3, solvable ball 3 fall into central upper portion pipe 222 upper end arrange with solvable ball 3 phase
In the arc groove 225 agreed with, central canal 22 moves down, the extruding of the transition piece 224 of central canal 22 be arranged on casing coupling or
The lock pawl 211 of tubing coupling locking pipe box 21 bottom, lock pawl 211 expands, and is firmly stuck in casing coupling or tubing coupling 1
In detent 11, it is achieved sleeve pipe or the closure of oil pipe 4.
When needing deblocking, by steel wire G.I.H, it is stuck in steel wire accumulator tank 226, lifts central canal 22, on central canal 22
Moving, the transition piece 224 of central canal 22 leaves and is arranged on casing coupling or the lock pawl 211 of tubing coupling locking pipe box 21 bottom,
Lock pawl 211 shrinks, and lock pawl 211 leaves the detent 11 of casing coupling or tubing coupling 1, it is achieved sleeve pipe or oil pipe 4
Deblocking.
When lock pawl 211 leaves the detent 11 of casing coupling or tubing coupling 1, continue lifting central canal 22, set
Pipe box cupling or tubing coupling locking pipe box 21 contact with the recovery box cupling 221 of centrally disposed pipe 22 lower end, and person's central canal 22
On move on at ground or the next casing coupling needing closure or tubing coupling 1, thus realize at a sleeve pipe or oil pipe 4
In complete repeatedly to insulate and unseal action, underground work efficiency is high, and simple to operate.
Before completion, workover treatment, under enter latch-up structure 2, latch-up structure 2 with in advance with sleeve pipe or oil pipe 4 with entering at present
Casing coupling or tubing coupling 1 in well match, and can insulate liquid or gas in sleeve pipe or oil pipe 4 and circulate up and down, carry out
Snubbing serving, improves job safety coefficient.
Before acidifying, pressure break, staged fracturing operation, under enter latch-up structure 2, latch-up structure 2 is with in advance and sleeve pipe or oil pipe 4
Casing coupling or the tubing coupling 1 of G.I.H simultaneously matches, it is ensured that the perforation carried out subsequently or abrasive perforating operation
It is smoothed out and then ensures that the acidifying to natural gas, coal bed gas or shale gas, pressure break or staged fracturing play the packing work of key
With.
Before changing well head, production tree or preventer operation, under enter latch-up structure 2, latch-up structure 2 with in advance with sleeve pipe or
Casing coupling or the tubing coupling 1 of oil pipe 4 G.I.H simultaneously match, and can carry out insulating sleeve pipe or oil pipe 4, more
Change wellhead ground equipment.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (10)
1. a packer, it is characterised in that including:
Inwall is provided with casing coupling or tubing coupling, latch-up structure and the solvable ball of detent；
Described latch-up structure includes casing coupling or tubing coupling locking pipe box and central canal, and central canal is located in described sleeve pipe and connects
In hoop or tubing coupling locking pipe box, and the top and bottom of central canal all protrude from described casing coupling or tubing coupling locking
Pipe box；
Casing coupling or tubing coupling locking pipe box bottom are provided with and the detent clamping on casing coupling or tubing coupling
Lock pawl；
The lower end of described central canal is provided with recovery box cupling, and the external diameter of described recovery box cupling connects more than described casing coupling or oil pipe
The internal diameter of hoop locking pipe box；
Described central canal includes central upper portion pipe and lower central pipe, and the diameter of described central upper portion pipe is more than lower central pipe
Diameter, is provided with transition piece between described central upper portion pipe and lower central pipe；
Described central upper portion pipe upper end is provided with the arc groove agreed with mutually with solvable ball.
Packer the most according to claim 1, it is characterised in that described lock pawl includes multiple along casing coupling or oil pipe
The elastic projection that box cupling locking pipe box circumference is uniformly arranged, multiple elastic projections composition tubular structure；
The internal diameter of described lock pawl is less than casing coupling or the internal diameter of tubing coupling locking pipe box, and the external diameter of described lock pawl is more than
Casing coupling or the external diameter of tubing coupling locking pipe box.
Packer the most according to claim 1, it is characterised in that described casing coupling or tubing coupling locking pipe box include
Top locking pipe box and bottom locking pipe box；
Top locking pipe box and bottom locking pipe box are by screwed connection, and bottom locking tube puts and is provided with limited step, spacing
Being provided with black box on step, the lower end in contact of pipe box is locked with top in the upper end of black box.
Packer the most according to claim 3, it is characterised in that pipe box is locked in described casing coupling or tubing coupling
Top is provided with the screw thread entering instrument under connecting.
Packer the most according to claim 4, it is characterised in that be provided with steel wire on described central upper portion inside pipe wall and return
Receive groove.
Packer the most according to claim 5, it is characterised in that described transition piece is cone sleeve pipe.
Packer the most according to claim 6, it is characterised in that described central upper portion pipe, transition piece and lower central
Pipe is structure as a whole.
Packer the most according to claim 7, it is characterised in that the described box cupling that reclaims is the bottom being set in central canal
Ring-type projection on central canal.
Packer the most according to claim 8, it is characterised in that described recovery box cupling is for set with central canal integrative-structure
The ring-type projection put.
Packer the most according to claim 9, it is characterised in that described black box is rubber or silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439303.8U CN205689159U (en) | 2016-05-16 | 2016-05-16 | A kind of packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439303.8U CN205689159U (en) | 2016-05-16 | 2016-05-16 | A kind of packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689159U true CN205689159U (en) | 2016-11-16 |
Family
ID=57261912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620439303.8U Withdrawn - After Issue CN205689159U (en) | 2016-05-16 | 2016-05-16 | A kind of packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689159U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
-
2016
- 2016-05-16 CN CN201620439303.8U patent/CN205689159U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
| CN105781476B (en) * | 2016-05-16 | 2018-03-30 | 陈晓新 | A kind of packer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161116 Effective date of abandoning: 20180330 |